Resilient screw stud



Patented Julyis,,193cvl Y like parts are Y of a blank from which the vvPAUL E. FENTON, or' mont-ASTON; conNEcrmU'n-nssIG-Nit roscovinn iuNUFAcf ICUT y aE-,SILENT i Y Appuc'ationing september .Y kThe object of thisinvention is to provide a screw stud, having ,an applied resi-lient shell, to function as the resilient member of a snap fastener, the complemental rigid or non-resilg ient socket member being of any` usual or ap;-

proved construction.

VThe invention. consists of a cap screw, threaded for use in wood or metal, the'head of which has attached to it a shell', made resilient for purposes of engagement with or disengagement from an, appropriate socket member, as I will proceed now to explain more fully andlinally claim. Y Y

' In the accompanying drawings illustrating the invention, inthe several iiguresof which similarly designated, Figurel is a top lplan,and Fig. 2 is a -side elevation, the shell in this last mentioned View being show-n in cross section onthefline 2 2 of Figl. Fig. 3 isa fragmentary sideelevation,` they shell being in cross sectiontaken on the line 8--3 of Fig. lf Fig. 4 is an elevation ofthe resilient end of'this screw engaged with one form -of socket, such asused on rugs or Carpets for automobiles and elsewhere,zthe socket being shown in section. Fig. 5 is a plan'view resilient shell may Y be formed. Fig. 6` shows theupper portionV of a cap screw anda cross section of the shell in position to be closed iniover the top of the head of the screw. ,Y A, Y

The screw l may have its ,threadedV end 4formed for use in connection witha wooden.

support, or this threaded. endmay be made for use with a metallic support.` The screw is'provided with a cylindrical nickel head 2 of any usual or approvedconstruction.

To the head 2 is applied the resilient shell of this invention. ing the shell is to form a blank,-Fig..5, having four, `more orless, wings 3 having arcuatetips or ends, between which and the body` of the wings are the beveled portions 4." The'blank is provided with La central hole 5. The blank is bent to the shape shown in Fig. 6, witha base 6 containing the hole 5, and the wings 3 are upturned at right angles tothe base `6 and formed with the parts 7 which fit,fmore or less closely, thehead of the screw, with `the wings bulged outwardly, as shown'at v8, `and One mode of manufactun' scnnwhsrun i i 5 the tipsarebentoverland-,downward f i 'upon the',topfofthcfhead'of lthe screw, .with theirrunder4 andcuter' facesiat'infa plane paralllto said top, u Y

4This :leaves ithge finished bulge 9,- 'Figs V2,v

as shown in Figs; 1,' Zand f Y j l 3 and 4, standing slightly foff fromfthel h-eadof' the adjacent edges of the wings are? inlopen contactfas are also the bent 'I l Y lover tips ofthe wings,

bulged outwardly as explained, the shellhas a and as the portions` 'of the wings betweenthe'base' 6 andfthe tips are.

resiliency suicie'nt topermit the engagement 'ofajrigid `or'nonresilie'nt 'socket 10, F ig. 4, of sulicifent; tenacity` to -hold the stud l and socketin firm-engagement, while at the same time admitting of disengagementwithout un `due stra1n.v"""- Y Thereisenough clearancebetween'the head yTof the' screwfandgthesheliltol-permit the 'resil- "ientv movement offthe wings "of the:v shell for lengagingor disengaging operations. j `Aswill bevseenj, the tips of thetvwingsofthe ing'v the`nickedfportion' offthe screw'a levell below` the outsideV level ofthe wingsf'ofgthev 'shellf "Infthis nespectth'e present 'invention is v avariation' of the inventionE formingl the sub yect ofmy concurrentapplicationfiled-*Sepi teinber 241521928;

.rg'afiyaisa granted April 29, i930) f As already stated, the stud 'is capable of different kinds of l shown in Fig. 4, is

' Thespa'ces' formed by and betwecnthe adjacent edges of the wings of the shellmay' extend to the bottom portion V6as shown inv 'Fig 2, or they may be shorter, as indicated.,

The screw 'inf this invention-is of a conr'f'entional4 type, -x and over "the head of the' y screw the shell is closed in a sliding Contact, thewalls ofthis shellhaving been broken substantially as shown in;l

form, having the Alangell with its: 'y

or separated in any number of predetermined places, to allow for the contraction and eX- pansion necessary for engaging and disengaging anon-resilient type of socket. The 5 diameter ofthe head of the screw, is slightly smaller than the diameter of the inside of Y Y HJthe shell'7 and this allows for contraction of i in disengagement therefrom.. p Y lo `vVariations in the details'of -construction are permissible within 'the principle of the n invention and the soope'of the claims following.

VhatI claimisf:` Y y ALA resilient screw stud', comprising ar screw having a cylindricalhead and a shank,' and a shell provided with a base in which is f aV hole toengage the shank saidbase underilying the vhead of the screw' and opstanding Y 20 wings having their tips bent over thetop of vthe head and in sliding engagement therec, with, said tips having their under and outer faces flat in a plane parallel to said top, there being sufficient clearance between the head ,25 of the screw and 'the surrounding shell to permit resilient, action of the wings.

Y 2. A resilient screwstud,Y comprising a screw having acylindrieal head and a shank, Y and a shell providedw-itli aV loaseinv which is: Y, a hole to engage thesha-nk; said base under-'- .lying the head of the screw and upstandingy wings having their tips loent over thetop of the head and in sliding engagement there-- a With, said tips having their under and outer| l A faces iatin a plane paralleltol said'top, there` losing sufficient clearance between the head of the screw and the surrounding-` shell'tog. j permit resilient action of the-wings, the up. 'per portions of the wings being bulged out-V 40 wardly, the wings lbeing resilient.l Y n* i n Intestiinony whereofl have hereunto set; .my hand this l21st day of SeptembenfA. Dz, 1928. f

the shell in uniting withthe socket and also.y .v

Arant iiiramon,l 

